Yes I found these guys by doing an internet search and their prices are $22 plus additional shipping from the US. A UK company I found (http://www.ampcomponents.co.uk/reverb.html
) sells them for 36 UK pounds all inclusive - that is US $59. I think it is cheaper to buy straight from the US.

Have I mentioned that most retailers and service providers in the UK, from clothes to electronics to food, slap on huge profit margins, like 200% or more? It is disgraceful.